https://web.stanford.edu/~gentzkow/research/
blp_replication.zip  (has a very complex file folder structure)
find the data in 
trunk/analysis/ Transparent Identification (BLP Estimation)/external/data/blp_1999_data.csv


Note: pyblp provide agent_data here.
https://raw.githubusercontent.com/jeffgortmaker/pyblp/master/pyblp/data/blp_agents.csv (download)

View: https://github.com/jeffgortmaker/pyblp/blob/master/pyblp/data/blp_agents.csv (nice for browsing)